River raise with top pair, K kicker, versus 2 passive opps

[DrBob]

I need a sanity check here. BB is L P/P and UTG+1 is slightly loose, also passive before and after flop. I think my flop raise and turn bet are routine, but was I wrong to bet the river? These players are perfectly capable of calling me down with A5 or a worse T.

Paradise Poker 0.50/1 Hold'em (9 handed)

Preflop: Hero is MP1 with T/images/graemlins/diamond.gif, K/images/graemlins/heart.gif.
UTG folds, UTG+1 calls, Hero calls, MP2 calls, MP3 folds, CO calls, Button calls, SB completes, BB checks.

Flop: (7 SB) T/images/graemlins/heart.gif, 5/images/graemlins/spade.gif, 2/images/graemlins/heart.gif <font color="blue">(7 players)</font>
SB checks, <font color="CC3333">BB bets</font>, UTG+1 calls, <font color="CC3333">Hero raises</font>, MP2 calls, CO calls, Button folds, SB folds, BB calls, UTG+1 calls.

Turn: (8.50 BB) 9/images/graemlins/club.gif <font color="blue">(5 players)</font>
BB checks, UTG+1 checks, <font color="CC3333">Hero bets</font>, MP2 folds, CO calls, BB calls, UTG+1 calls.

River: (12.50 BB) 4/images/graemlins/club.gif <font color="blue">(4 players)</font>
BB checks, UTG+1 checks, <font color="CC3333">Hero bets</font>, CO folds, BB calls, UTG+1 calls.

Final Pot: 15.50 BB

[MHarris]

The river bet is mandatory, particularly if your opponents are going to call with middle pair and maybe worse. There aren't many hands for you to worry about here.

[GrunchCan]

Fold PF. Everything else is fine.

[DrBob]

You're correct, I misspoke when I said all routine up to river. KT should normally be folded there, but it's close to border. In this case the table was quite passive, so I was pretty confident I'd see the flop for just 1 bet.